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  • 29  (1)
  • Inorganic Chemistry  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Experimental setup for transmission channeling of MeV ions to study edge dislocations (1980)
    Springer
    Applied physics 21 (1980), S. 47-53 
    Details
    ISSN: 1432-0630
    Keywords: 29 ; 34 ; 35 ; 68.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract An experimental facility was built where thin metal (Ta) crystals, with known thickness, could be studied by transmission channeling of MeV ions. The details of obtaining a faint beam (1.5–3.6 MeV) of constant flux (±1%) on the target and normalization of the spectrum of forward scattered particles have been discussed with merits and demerits of various setups used. Preliminary experimental results are reported for measuring dechanneling coefficients from edge dislocations produced by cold work, using H+ ions. The H+ stopping power for Ta in various planar channels and random direction are estimated and using those, it is shown possible to use the setup for thickness measurements of thin crystal films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886482
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A colorimetric Study of the reaction between vanadyl sulphate and catechol (1962)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 315 (1962), S. 118-120 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Gibt man Brenzkatechin zu einer Vanadylsulfat-Lösung, so ändert sich die Farbe von blau in violett. Die violette Farbe wird nach einiger Zeit violettschwarz. Die colorimetrische Untersuchung nach der JOB-Methode ergab, daß zunächst ein 1:2-Komplex gebildet wird, der nur kurze Zeit beständig ist und dann in einem 1:3-Komplex übergeht.
    Notes: Vanadyl sulphate, when mixed with catechol, undergoes a colour change from blue to violet. The violet colour is unstable and it turns violet-black after some time. A colorimetric study of the reaction by using JOB'S continuous variation method reveals that at first a 1:2 complex is formed between vanadyl sulphate and catechol. The complex is stable only for a short time and it takes up one more molecule of catechol to form a 1:3 complex.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19623150117
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    Paper (German National Licenses)
    Fulltext
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